html {
    background-size: 1900px 1080px;
    background: url("../img/background.jpeg") no-repeat fixed;
}
a {
    text-decoration: none;
}

ul {
    list-style-type: none;
}

li {
    text-decoration: none;
    list-style-type: none;
}

.left {
    float: left;
}
.right {
    float: right;
}